This message retrieves an index value for an item based on its order in the header control.
At a Glance
| Header file: | Commctrl.h |
| Windows CE versions: | 2.0 and later |
| Related macro: | Header_OrderToIndex |
Syntax
HDM_ORDERTOINDEX wParam = (WPARAM) iOrder; lParam = 0;
Parameters
iOrder
Order in which the item appears within the header control, from left to right. For example, the index value of the item in the far left column would be 0. The value for the next item to the right would be 1, and so on.
Return Values
Returns INT that indicates the item index. If iOrder is invalid (negative or too large), the return value equals iOrder.